Monthly information relating to the total number of voting rights and shares comprising the share capital

VALLOUREC

French limited liability company (société anonyme) with a Board of Directors

with share capital of € 4,767,162.72

Registered office: 12, rue de la Verrerie - 92190 Meudon, France

Registered on the Nanterre Trade and Companies Register under n° 552 142 200

Meudon, July 18th, 2025

Monthly information relating to the total number of voting rights

and shares comprising the share capital

Article L. 233-8-II of the French Code de commerce and

Article 223-16 of the General Regulations of the Autorité des Marchés Financiers (AMF)

DateTotal number

of outstanding sharesTheoretical total number of voting rights (1)Net total number

of voting rights (2)30 June 2025238 391 214234 359 146233 321 15131 May 2025238 362 191234 359 146234 059 14630 April 2025238 358 136234 253 093234 253 09331 March 2025238 139 535234 034 492234 034 49228 February 2025238 084 623233 993 941233 993 94131 January 2025238 084 623233 966 259233 966 25931 December 2024238 084 623233 917 225233 917 22530 November 2024238 052 129231 123 100231 123 10031 October 2024238 052 129231 051 893231 051 89330 September 2024237 784 309230 304 541230 304 54131 August 2024237 784 309230 244 702230 244 70231 July 2024237 784 309229 947 719229 947 71930 June 2024237 271 828229 877 070229 769 40231 May 2024237 271 828229 877 070229 769 40230 April 2024237 271 828229 877 070229 769 40231 March 2024237 271 828229 877 070229 769 40229 February 2024237 271 828229 877 070229 769 40231 January 2024237 271 828229 877 070229 769 40231 December 2023237 271 828229 877 070229 769 40230 November 2023236 781 727229 386 969229 279 30131 October 2023236 781 727229 386 969229 279 30130 September 2023236 635 229229 240 471229 132 80331 August 2023236 619 061229 240 471229 132 80331 July 2023236 619 061229 240 471229 132 80330 June 2023235 532 187229 240 471229 132 80331 May 2023 231 777 627229 228 999229 080 11630 April 2023 231 777 627229 228 999229 080 11631 March 2023231 777 627229 228 999229 080 11628 February 2023231 777 627229 228 999229 080 11631 January 2023231 777 627229 228 999229 080 11631 December 2022231 777 627229 228 999229 080 11630 November 2022231 777 627229 228 999229 080 11631 October 2022231 777 627229 228 999229 080 11630 September 2022228 928 428228 928 428228 779 54531 August 2022228 928 428228 928 428228 779 54531 July 2022228 928 428228 928 428228 779 54530 June 2022228 928 428228 928 428228 779 50231 May 2022228 928 428228 928 428228 740 76330 April 2022228 928 428228 928 428228 740 76331 March 2022228 928 428228 928 428228 740 76328 February 2022228 928 428228 928 428228 740 76331 January 2022228 928 428228 928 428228 740 76331 December 2021228 928 428228 928 428228 740 76330 November 2021228 928 428228 928 428228 740 76331 October 2021228 928 428228 928 428228 740 76330 September 2021228 928 428228 928 428228 740 76331 August 2021228 928 428228 928 428228 740 76331 July 2021228 928 428228 928 428228 714 16030 June 2021228 928 428228 928 428228 914 03131 May 202111 449 69411 811 81011 797 41330 April 202111 449 69411 811 77211 790 69131 March 202111 449 69411 811 66211 810 58128 February 202111 449 69411 809 47311 808 39231 January 202111 449 69411 809 65211 808 57131 December 202011 449 69411 810 45611 809 37530 November 202011 449 69411 809 70811 808 62731 October 202011 449 69411 809 92911 808 84830 September 202011 449 69411 809 87711 808 79631 August 202011 449 69411 792 31711 791 23631 July 202011 449 69411 792 29111 791 21030 June 202011 449 69411 792 48711 791 35231 May 202011 449 69411 825 99811 810 412 (1) According to Art. 223- 11 of the AMF General Regulations the theoretical (or gross) number of voting rights is used on the basis of all shares with voting rights, including shares temporarily deprived of voting rights (treasury shares, liquidity contract treasury shares), but excluding shares which have no voting rights (preferred shares).

(2) The net number of voting rights (or voting rights "exercisable at a Shareholders’ Meeting”) is calculated by excluding shares without voting rights. It is provided for public information.

The by-laws of Vallourec contain a provision imposing an obligation to declare crossing thresholds in addition to those relating to legal thresholds.

This information is also available on the Vallourec website under "Regulated information”: https://www.vallourec.com/en/hub-finance/informations-reglementees

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